This is going to be my running list of ways that UE4 is continuing to impress me. And to keep things fair, I will also include a section of things that have not impressed me. SO, lets get to it.
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+The user interface overall. Every aspect of the interface is better. You can see the influence of Maya in the various aspects of the Unreal Engine. There are some very useful features in Maya that makes working in it more efficient and friendly and a lot of those features have made their way here.
+The Content Browser overall. The interface has greatly been changed for the better. It's cleaner and easier to understand and use.
+There is now an easily accessed scene outline just like the one from Maya. It's essentially a list of everything in the scene which makes for locating small detail objects easy rather than losing track of assets randomly.
+The details panel of the user interface is like the channel box editor from Maya. It's all the extra information about an object in the level such as the location, scale, rotation, Material information, and anything else that applies to that object.
+Blue Prints in general =p
+Class Blue Prints: Build a prefabricated system of meshes, lights, and blueprint instructions, then drag and drop it as many times as you need into any level you are working on. Made a mistake and need to fix it? Open it like an Asset from the content browser and make any changes and it will update through out your game.
+Creating Comment Wraps for a section of the Blueprint, When you move the Comment Wrap you also move everything else inside of it as well.
+Physical based materials. The editor runs on a blueprint system which allows for fast editing. It's a cleaner but just as powerful system that Maya uses for its materials. In fact, the material editor understands the connections and networks when materials are imported with a mesh from Maya.
+The particle system in UE4 is extremely powerful.
+The lighting is absolutist outstanding. It updates fast and build times are reasonable even on my 2 year old machine. Very impressive.
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>And now the section about things that are very underwhelming (Or just whelmed) aspects that need improved.
-The builder brushes make my computer crash when I try making even simple edits to the edges or faces of the objects. Very frustrating when you are trying to prototype a level with builder brushes. Doesn't work out too well.